Heating a 300 gallon tank ?

  • We are currently upgrading MFK. thanks! -neo
Thanks for your input!
I am not using the overflow boxes - I'm thinking of putting a Betta in each of them since the back of the tank faces the art center, and the kids can watch those, as well as the fish in the main tank.

The heaters are in the tank itself, attached (suction cups) to the outside of each overflow boxes.
 
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